When playing team sports, one doesn't always have the ball, but one can still always help out one's team — either deliberately setting up conditions for the next play, or at least making sure one has a positional advantage on the opponents so as to be ready when the play arrives.

The same principle applies at work.

(also, agreed, relax: work isn't always evenly distributed, and —like Messi during the World Cup— you can walk around and catch your breath, while the focus is elsewhere)